BS EN 1676:2020 pdf download.Aluminium and aluminium alloys一Alloyed ingots for remelting一Specifications.
6.3 Rounding rules for determination of compliance
In recording chemical analysis results, the number representing the result for any value specified in this document shall be expressed to the same number of decimal places as the corresponding number in this document.
The following rounding rules shall be used for determination of compliance with this document:
a) when the figure immediately after the last figure to be retained is less than 5 the last figure to be retained remains unchanged;
b) when the figure immediately after the last figure to be retained is greater than 5, or equal to 5 and followed by at least one figure other than zero, the last figure to be retained is increased by one;
c) when the figure immediately after the last fIgure to be retained is equal to 5 and followed by zeros only, the last figure to be retained remains unchanged if even, and is increased by one if odd.
See also EN 1780-3.
7 Inspection documents
The producer shall supply the grade of aluminium alloy quoted on the order document. By agreement between the supplier and the purchaser or when specified on the order document, the consignment shall be accompanied by a certificate listing the results of the analysis of the chemical elements noted in Table 1 and any other element which could have been previously requested, as a specific inspection.
8 Marking of products
Unless otherwise indicated on the order document, each unit (i.e. bundle of ingots, T-bar or sow) shall bear one or more marks, which show the following:
— the producer identification;
— the alloy designation;
— the melt number;
— the mass of the unit.
The method of marking is left to the discretion of the supplier, but it shall be sufficiently weather-proof and shall not be a source of contamination.
In recording chemical analysis results, the number representing the result for any value specified in this document shall be expressed to the same number of decimal places as the corresponding number in this document.
The following rounding rules shall be used for determination of compliance with this document:
a) when the figure immediately after the last figure to be retained is less than 5 the last figure to be retained remains unchanged;
b) when the figure immediately after the last figure to be retained is greater than 5, or equal to 5 and followed by at least one figure other than zero, the last figure to be retained is increased by one;
c) when the figure immediately after the last fIgure to be retained is equal to 5 and followed by zeros only, the last figure to be retained remains unchanged if even, and is increased by one if odd.
See also EN 1780-3.
7 Inspection documents
The producer shall supply the grade of aluminium alloy quoted on the order document. By agreement between the supplier and the purchaser or when specified on the order document, the consignment shall be accompanied by a certificate listing the results of the analysis of the chemical elements noted in Table 1 and any other element which could have been previously requested, as a specific inspection.
8 Marking of products
Unless otherwise indicated on the order document, each unit (i.e. bundle of ingots, T-bar or sow) shall bear one or more marks, which show the following:
— the producer identification;
— the alloy designation;
— the melt number;
— the mass of the unit.
The method of marking is left to the discretion of the supplier, but it shall be sufficiently weather-proof and shall not be a source of contamination.
